my Tesla Model S Plaid/Refresh (2021-present) has poor fuel economy, what to do?

Tesla Model S Plaid/Refresh (2021-present)

Error Codes

1-2 hours

Time

medium

Difficulty

medium

Severity

3 min read

472 words

Problem Statement

Learn how to diagnose and fix poor fuel economy issues in Tesla Model S Plaid. Step-by-step guide with diagnostic procedures and repair instructions.

Affected Component

Electrical

Estimated Time

1-2 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Ensure the vehicle is in 'Park' before performing any checks or adjustments.

Symptoms

•Reduced driving range on a full charge
•Increased frequency of charging required
•Unusual battery drain when parked
•Slower acceleration than expected
•Warning messages regarding battery health or performance

Diagnostic Steps

1
Check the vehicle's energy consumption settings in the display.
2
Inspect tire pressure and tread condition.
3
Review recent software updates and installed apps that may impact performance.
4
Use the Tesla app to check for any diagnostic codes related to battery performance.
5
Monitor energy usage over the last few charging cycles to identify any irregular patterns.

Solution

💡 Expert Tip

For complex repairs like this, consider taking photos at each step. This helps if you need to reverse a step or consult with a mechanic. Also, keep all removed parts organized - you may need to reference them during reassembly.

Verification

After completing the repair, verify that the issue has been resolved:

✓Test the affected component to ensure it functions correctly
✓Check for any error codes or warning lights
✓Monitor the vehicle for a few days to ensure the issue does not recur

Prevention Tips

To prevent this issue from occurring again:

•Follow the manufacturer's recommended maintenance schedule
•Address warning signs early before they develop into major issues
•Use quality parts and fluids recommended for your vehicle
•Keep detailed records of all repairs and maintenance

Tools & Equipment Required

•Tire pressure gauge
•Laptop or mobile device for software checks

Parts Required

•Replacement tires if necessary

Related Faults

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Diagnostic Steps

1
Check the vehicle's energy consumption settings in the display.
2
Inspect tire pressure and tread condition.
3
Review recent software updates and installed apps that may impact performance.
4
Use the Tesla app to check for any diagnostic codes related to battery performance.
5
Monitor energy usage over the last few charging cycles to identify any irregular patterns.

Solution

1. Preparation

Ensure the vehicle is parked on a level surface and turned off.
Gather tools: Tire pressure gauge, laptop or mobile device for software checks.

2. Tire Inspection and Adjustment

Sub-step 1: Measure the tire pressure using the tire pressure gauge.
Sub-step 2: Inflate tires to the recommended PSI (check the label on the driver’s side door).
Sub-step 3: Inspect the tires for uneven wear or damage; replace if necessary.

3. Software Update and App Management

Sub-step 1: Connect the vehicle to Wi-Fi and check for any available software updates.
Sub-step 2: Install updates if available, following on-screen prompts.
Sub-step 3: Uninstall any unnecessary apps that may affect battery usage.

4. Battery Health Check

Sub-step 1: Access the Tesla app and navigate to the battery health section.
Sub-step 2: Review battery cycle count and capacity; consider a battery health assessment if issues are detected.
Sub-step 3: If the battery is significantly degraded, consult Tesla Service for possible battery replacement.

5. Resetting Energy Settings

Sub-step 1: Go to the vehicle's settings menu and reset the energy consumption settings to default.
Sub-step 2: Recalibrate the battery by performing a full charge and discharge cycle.